| Year | 1937 |
| Date | 24-Jun |
| Volume | 76 |
| Issue | 1,885 |
| Page | 583 |
| Category | Tool-Room Topics |
| Part | |
| Title | Spacing Holes Independently of Machine Feed-Screws |
| Author | R.Hutcheson |
| Notes | Using parallel strips, slip gauges, setting two strips square with one amother by cylinders, heavy type of square, micrometer dividing table |